<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods, i) in goodslist" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        //请求参数对象
        queryObj: {
          query: '',
          cid: '',
          pagenum: 1,
          pagesize: 10
        },
        goodslist: [],
        total: 0,
        // 节流阀
        isLoading: false
        
      };
    },
    onLoad(options) {
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      
      this.getGoodsList()
      
    },
    methods: {
      //获取商品列表数据的方法
      async getGoodsList(cb) {
        // 打开节流阀
        this.isLoading = true
        const {data: res} = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        // 关闭节流阀
        this.isLoading = false
        cb && cb()
        if(res.meta.status !== 200) return uni.$showMsg()
        
        this.goodslist = [...this.goodslist, ...res.message.goods]
        this.total = res.message.total
      },
      gotoDetail(item) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
        })
      }
    },
    onReachBottom() {
      if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')
      
      if(this.isLoading) return
      
      // 让页码值自增 +1
      this.queryObj.pagenum += 1
      // 重新获取列表数据
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isLoading = false
      this.goodslist = []
      
      // 重新发起请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>
